Strange and worrying problem on second day of new Kärcher RC3000! Received it yesterday and it runned great for 3-4 hours before I activated the parking function during the night. Now it just refuses to move or run. The green light blinks slowly if it is near the station, and it shines constantly if out of sight from the station. It does not run at all. If I try to charge it by pressing it against the station it just rolls of when I release it. Another weird thing: the two motors(?) near the brush is pretty warm, even though it has not runned since yesterday. Warm even if I turn of the unit!Any help would be great!

Edit: I've attached an image of an object that might have fallen out of the unit. Does anyone know if it is a small part of the unit that has come loose?

Just found this thread: viewtopic.php?f=6&t=12143It is obvious that the small white plastic thing is a part of the RC3000 and that it somehow has broken and come out. It surely is the reason why the unit refuses to work.

The manual explains when/why the LED's light constantly or flash. The warm 'motors' near the brush are the batteries - they will be warm when they're fully charged. The plastic part which has fallen out of your robot is a stabiliser spring - there are two inside and they help centre the outer shell. The one in your picture is broken - your robot must have had a serious knock (or been trodden on) to break it though! It's unlikely the robot will run properly without them, but they're cheap to replace - you can order them direct from Karcher.

robocleaner wrote:The manual explains when/why the LED's light constantly or flash. The warm 'motors' near the brush are the batteries - they will be warm when they're fully charged. The plastic part which has fallen out of your robot is a stabiliser spring - there are two inside and they help centre the outer shell. The one in your picture is broken - your robot must have had a serious knock (or been trodden on) to break it though! It's unlikely the robot will run properly without them, but they're cheap to replace - you can order them direct from Karcher.

PIC_0459.JPG

Thanks for the reply, I've now ordered the stabiliser springs. Do you know if they are they hard to replace? I've removed the yellow top and I have located them. Do I need to remove a lot of parts/screws in order to reach them?

Pull/lift off the rubber belly-band, take out the 4 x Torx T20 screws underneath (by the cliff-sensors), turn the robot back over, on the main board slide off the ribbon-cable connector that comes from the robot's control panel, and the top-half of the grey shell lifts off. The two stabilisers just slot in.

As the whole of the outer casing is in effect a multi-directional bumper for detecting collisions, the 2 stabilising springs (or "feder" - "feather", as Karcher now call them) seem only to stop that shell bobbing around excessively. Without those "feathers", the bump-detection is too sensitive and triggers too often (on carpet especially, less so on smooth, hard flooring).

But I think this OP's problem might be a failed main board: He has no drive to the wheels, yet the sequence of LED's and warm batteries suggest power is being supplied as if the robot is otherwise functioning normally. If it were failed wheel motors, it would be very unlikely that both would fail simultaneously, and the robot would likely drive in a circle? Power is also applied to the wheel motors to apply pressure against the charging contacts when docked, where here the robot is just rolling off which also supports this view. Just a random theory; I've never heard or read of any failure such as this before.